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: http://www.sai.msu.su/twn/antx.html
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Дата индексирования: Mon Oct 1 20:23:19 2012
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The star in the yellow region is Antares (Alpha Scorpii);
the star in the blue region at the right
is Rho Ophiuchi surrounded by the emission nebula IC 4604;
the star in the red region at the bottom is Sigma Scorpii;
just below Antares is
the globular cluster M 4.
The bright region just to the left of Rho Ophiuchi shows evidence of
new star formation.
Antares (aka "Le Coeur de Scorpion" -- the Heart of the Scorpion) is a
red supergiant star some 700 times larger in diameter than the Sun, though
it is "only" 9000 times more luminous and "only" 10 or 15 times more massive.
Note that M 4 is much more distant than the Antares/Rho Ophiuchi nebulosity;
we see it thru the intervening gasses.